有机化学 ›› 2005, Vol. 25 ›› Issue (10): 1227-1229. 上一篇    下一篇

研究论文

Cp2TiCl2/i-BuMgBr还原断裂Se—Csp键反应研究

李言杰1,曾纪朝1,2,许新华*,1,张青丽1   

  1. (1湖南大学化学化工学院 长沙 410082)
    (2邵阳学院化学系 邵阳422000)
  • 收稿日期:2004-01-15 修回日期:2005-04-18 发布日期:2005-10-08
  • 通讯作者: 许新华

Cleavage of Se—Csp Bond by Cp2TiCl2/i-BuMgBr

LI Yan-Jie1,ZENG Ji-Chao1,2,XU Xin-Hua*,1,ZHANG Qing-Li1   

  1. LI Yan-Jie1,ZENG Ji-Chao1,2,XU Xin-Hua*,1,ZHANG Qing-Li1
  • Received:2004-01-15 Revised:2005-04-18 Published:2005-10-08
  • Contact: XU Xin-Hua

Cp2TiCl2/i-BuMgBr体系形成的钛氢化试剂与炔硒醚反应生成端炔与深蓝色钛硒化物, 后者在空气中被氧化为二醚, 与酰氯反应, 高产率地形成对应的硒代酯.

关键词: 二氯二茂钛, 硒代酯, 炔硒醚, 酰氯, 异丁基溴化镁

The Se—Csp bond of selenium alkynides was cleavaged by Cp2TiCl2/i-BuMgBr in THF at room temperature to produce quantita-tively the selenium-free alkynes and deep blue titanocenium selenides Cp2TiSeAr. The latter was converted into diaryldiselenides in air and reacted with acyl chloride in THF-HMPA to afford the cor-responding selenoesters in high yieds.

Key words: titanocene dichloride, selenium alkynide, acyl chloride, selenoester, isobutylmagnesium bromide